The film has also been out of the public eye for ages. I do not believe it has ever been officially released in any home medium (feel free to correct this if I am wrong). Featured in the film are the comedy stylings of Del Close and Garry Goodrow. The music is also a selling point—the MC5 are prominently featured.
As an aside, for anyone who saw the film, Pirate Radio, the producer of this film, Ronan O’Rahilly, is the character portrayed by Phillip Seymour Hoffman. O’Rahilly was the manager of MC5 and brought them on board.
You can find out more and pre-order a copy at the Official Gold Website